/* roulang page: index */
:root {
            --color-primary: #0B1F17;
            --color-primary-soft: #133626;
            --color-accent: #C8F135;
            --color-accent-hover: #D9FA58;
            --color-alert: #FF6B35;
            --color-alert-hover: #FF8255;
            --color-bg-light: #F4F7F2;
            --color-bg-white: #FFFFFF;
            --color-text-main: #15231B;
            --color-text-muted: #5B6B62;
            --color-text-light: #E7F0E9;
            --color-text-light-muted: #A9B8AE;
            --color-border: rgba(11, 31, 23, 0.12);
            --color-border-dark: rgba(255, 255, 255, 0.14);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark: 0 12px 32px rgba(0, 0, 0, 0.28);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --section-space: 80px;
            --card-padding: 24px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.35s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background: var(--color-bg-light);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            outline: none;
        }

        input,
        select {
            font-family: inherit;
            outline: none;
            border: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 28px;
            padding-right: 28px;
        }

        @media (max-width: 1024px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            :root {
                --section-space: 60px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            :root {
                --section-space: 48px;
                --card-padding: 18px;
            }
        }

        @media (max-width: 480px) {
            :root {
                --section-space: 36px;
            }
            body {
                font-size: 15px;
                line-height: 1.7;
            }
        }

        .section {
            padding: var(--section-space) 0;
        }

        .section-alt {
            background: var(--color-bg-white);
        }

        .section-deep {
            background: var(--color-primary);
            color: var(--color-text-light);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-alert);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            color: inherit;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 800px;
            line-height: 1.9;
        }

        .section-deep .section-desc {
            color: var(--color-text-light-muted);
        }

        .text-highlight {
            color: var(--color-accent);
            font-weight: 700;
        }

        .text-alert {
            color: var(--color-alert);
            font-weight: 700;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            line-height: 1.4;
            letter-spacing: 0.3px;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        .btn-primary:hover {
            background: var(--color-alert);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary {
            background: transparent;
            color: inherit;
            border: 2px solid currentColor;
        }

        .btn-secondary:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-ghost-light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-1px);
        }

        .btn-sm {
            padding: 8px 16px;
            font-size: 13px;
            border-radius: 10px;
        }

        .btn-lg {
            padding: 14px 30px;
            font-size: 16px;
            border-radius: 14px;
        }

        .tag {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 8px;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.3px;
            line-height: 1.4;
            border: 1px solid var(--color-border);
            color: var(--color-text-muted);
            background: transparent;
        }

        .tag-accent {
            border-color: var(--color-accent);
            color: var(--color-primary);
            background: rgba(200, 241, 53, 0.15);
        }

        .tag-alert {
            border-color: var(--color-alert);
            color: var(--color-alert);
            background: rgba(255, 107, 53, 0.1);
        }

        .badge-num {
            font-family: "SF Mono", "Roboto Mono", "Consolas", monospace;
            font-weight: 700;
            letter-spacing: -0.5px;
        }

        .card {
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            background: #fff;
            padding: var(--card-padding);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(11, 31, 23, 0.2);
            transform: translateY(-2px);
        }

        .card-deep {
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--color-border-dark);
            color: var(--color-text-light);
            box-shadow: var(--shadow-dark);
        }

        .card-deep:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
            box-shadow: var(--shadow-lg);
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 16px;
            left: 24px;
            right: 24px;
            z-index: 1000;
            transition: all var(--transition-slow);
        }

        .site-header.scrolled {
            top: 12px;
            left: 24px;
            right: 24px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: rgba(11, 31, 23, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-radius: var(--radius-pill);
            padding: 12px 18px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .brand {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .brand-dot {
            display: inline-block;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-accent);
            flex-shrink: 0;
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 4px;
            flex-wrap: nowrap;
        }

        .nav-list li a {
            display: block;
            padding: 8px 14px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.8);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.2px;
        }

        .nav-list li a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }

        .nav-list li a.active {
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
        }

        .nav-toggle {
            display: none;
            font-size: 26px;
            color: #fff;
            line-height: 1;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        @media (max-width: 900px) {
            .site-header {
                top: 10px;
                left: 16px;
                right: 16px;
            }
            .site-header.scrolled {
                top: 8px;
                left: 16px;
                right: 16px;
            }
            .main-nav {
                border-radius: 20px;
                padding: 10px 14px;
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-top: 10px;
                border-top: 1px solid rgba(255, 255, 255, 0.15);
                margin-top: 8px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 10px 14px;
                text-align: center;
                border-radius: 12px;
                font-size: 15px;
            }
            .nav-toggle {
                display: block;
            }
        }

        @media (max-width: 480px) {
            .brand {
                font-size: 17px;
            }
            .site-header {
                top: 6px;
                left: 10px;
                right: 10px;
            }
            .site-header.scrolled {
                top: 6px;
                left: 10px;
                right: 10px;
            }
            .main-nav {
                padding: 8px 12px;
                border-radius: 16px;
            }
        }

        /* Hero */
        .hero {
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 140px 0 80px;
            background: var(--color-primary);
            background-image: url('/assets/images/3ee59ab00e428393.webp');
            background-size: cover;
            background-position: center 30%;
            position: relative;
            overflow: hidden;
        }

        .hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 31, 23, 0.82) 0%, rgba(11, 31, 23, 0.92) 55%, rgba(11, 31, 23, 0.97) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-content {
            color: var(--color-text-light);
        }

        .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(200, 241, 53, 0.12);
            border: 1px solid rgba(200, 241, 53, 0.3);
            color: var(--color-accent);
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .hero-title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
            color: #fff;
        }

        .hero-desc {
            font-size: 17px;
            line-height: 2.0;
            color: rgba(255, 255, 255, 0.82);
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-stats {
            display: flex;
            gap: 24px;
            margin-top: 28px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-accent);
            font-family: "SF Mono", "Roboto Mono", "Consolas", monospace;
            letter-spacing: -0.5px;
        }

        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
        }

        .hero-panel {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-lg);
            padding: 26px;
            box-shadow: var(--shadow-dark);
        }

        .hero-panel-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        .hero-panel-live {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-accent);
            background: rgba(200, 241, 53, 0.12);
            padding: 4px 10px;
            border-radius: var(--radius-pill);
        }

        .live-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--color-alert);
            animation: pulse 1.6s infinite;
        }

        @keyframes pulse {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.85); }
        }

        .match-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .match-row:last-child {
            border-bottom: none;
        }

        .match-team {
            font-size: 14px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
        }

        .match-score {
            font-size: 18px;
            font-weight: 800;
            color: var(--color-accent);
            font-family: "SF Mono", "Roboto Mono", "Consolas", monospace;
        }

        .match-status {
            font-size: 11px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.65);
            text-align: center;
        }

        .hero-region-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-top: 18px;
        }

        .hero-region-tag {
            font-size: 12px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.8);
            background: rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
            border: 1px solid rgba(255, 255, 255, 0.18);
            transition: all var(--transition-fast);
        }

        .hero-region-tag:hover {
            background: rgba(200, 241, 53, 0.2);
            border-color: rgba(200, 241, 53, 0.4);
            color: #fff;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-title {
                font-size: 34px;
            }
            .hero {
                min-height: auto;
                padding: 120px 0 64px;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 26px;
            }
            .hero-desc {
                font-size: 15px;
                line-height: 1.85;
            }
            .hero-stats {
                gap: 16px;
            }
            .hero-stat-num {
                font-size: 24px;
            }
            .hero-panel {
                padding: 18px;
            }
            .match-team {
                font-size: 12px;
            }
            .match-score {
                font-size: 15px;
            }
        }

        @media (max-width: 480px) {
            .hero {
                padding: 96px 0 40px;
            }
            .hero-title {
                font-size: 22px;
                letter-spacing: 0.2px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                justify-content: center;
            }
        }

        /* Service Matrix */
        .service-matrix {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 20px;
            margin-top: 32px;
        }

        .service-card {
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            background: #fff;
            padding: 26px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(11, 31, 23, 0.2);
        }

        .service-card-featured {
            background: var(--color-primary);
            color: var(--color-text-light);
            border-color: var(--color-primary);
            box-shadow: var(--shadow-dark);
        }

        .service-card-featured:hover {
            border-color: var(--color-primary);
            box-shadow: var(--shadow-lg);
        }

        .service-icon {
            font-size: 30px;
            color: var(--color-accent);
            margin-bottom: 4px;
        }

        .service-card-featured .service-icon {
            color: var(--color-accent);
        }

        .service-card-title {
            font-size: 18px;
            font-weight: 700;
        }

        .service-card-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.75;
        }

        .service-card-featured .service-card-desc {
            color: var(--color-text-light-muted);
        }

        .service-card-stat {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-alert);
            font-family: "SF Mono", "Roboto Mono", "Consolas", monospace;
        }

        @media (max-width: 1024px) {
            .service-matrix {
                grid-template-columns: 1fr 1fr;
            }
            .service-card:first-child {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .service-matrix {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .service-card:first-child {
                grid-column: auto;
            }
        }

        /* Comparison */
        .comparison-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 32px;
        }

        .comparison-card {
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            background: #fff;
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .comparison-card-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .comparison-card-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 14px;
        }

        .comparison-card-table th,
        .comparison-card-table td {
            padding: 10px 8px;
            text-align: left;
            border-bottom: 1px solid var(--color-border);
            line-height: 1.5;
        }

        .comparison-card-table th {
            font-weight: 700;
            color: var(--color-text-muted);
            font-size: 12px;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }

        .comparison-card-table td {
            font-weight: 500;
        }

        .trend-up {
            color: #1E8E3E;
            font-weight: 700;
        }

        .trend-down {
            color: var(--color-alert);
            font-weight: 700;
        }

        @media (max-width: 768px) {
            .comparison-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* Milestones */
        .timeline {
            display: flex;
            flex-direction: column;
            gap: 0;
            margin-top: 32px;
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 6px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: rgba(11, 31, 23, 0.15);
        }

        .timeline-item {
            position: relative;
            padding-bottom: 28px;
            padding-left: 20px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            left: -27px;
            top: 6px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--color-accent);
            border: 3px solid var(--color-primary);
            box-shadow: 0 0 0 2px rgba(200, 241, 53, 0.3);
        }

        .timeline-year {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-alert);
            letter-spacing: 0.3px;
        }

        .timeline-title {
            font-size: 16px;
            font-weight: 700;
            margin: 4px 0 4px;
        }

        .timeline-desc {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.75;
        }

        /* News List */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .news-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            background: #fff;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(11, 31, 23, 0.2);
        }

        .news-card-img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            background: #e5ede6;
        }

        .news-card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .news-card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .news-card-title {
            font-size: 15px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--color-text-main);
            transition: color var(--transition-fast);
        }

        .news-card:hover .news-card-title {
            color: var(--color-primary);
        }

        .news-card-summary {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
            flex-grow: 1;
        }

        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* Platform Promise */
        .promise-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 32px;
        }

        .promise-item {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 22px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-dark);
            background: rgba(255, 255, 255, 0.06);
            transition: all var(--transition-base);
        }

        .promise-item:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(200, 241, 53, 0.3);
        }

        .promise-icon {
            font-size: 26px;
            color: var(--color-accent);
        }

        .promise-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
        }

        .promise-desc {
            font-size: 14px;
            color: var(--color-text-light-muted);
            line-height: 1.75;
        }

        @media (max-width: 768px) {
            .promise-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* Quick Answers */
        .quick-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
            margin-top: 32px;
        }

        .quick-card {
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            background: #fff;
            padding: 20px;
            display: flex;
            gap: 14px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .quick-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .quick-num {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-accent);
            flex-shrink: 0;
            line-height: 1.4;
        }

        .quick-body {
            flex: 1;
        }

        .quick-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .quick-answer {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.75;
        }

        @media (max-width: 768px) {
            .quick-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* FAQ */
        .faq-list {
            margin-top: 32px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 850px;
        }

        .faq-item {
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            background: #fff;
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .faq-item.active {
            border-color: rgba(11, 31, 23, 0.25);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 700;
            color: var(--color-text-main);
            text-align: left;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: rgba(200, 241, 53, 0.08);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(11, 31, 23, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            color: var(--color-primary);
            transition: all var(--transition-base);
            line-height: 1;
        }

        .faq-item.active .faq-icon {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 22px;
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.9;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        /* Form */
        .form-card {
            background: #fff;
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 32px;
            box-shadow: var(--shadow-md);
            max-width: 650px;
            margin-top: 32px;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }

        .form-field {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-field-full {
            grid-column: 1 / -1;
        }

        .form-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-main);
        }

        .form-input,
        .form-select {
            padding: 12px 16px;
            border-radius: 10px;
            border: 1px solid var(--color-border);
            background: var(--color-bg-light);
            font-size: 14px;
            color: var(--color-text-main);
            transition: all var(--transition-fast);
            width: 100%;
        }

        .form-input:focus,
        .form-select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 241, 53, 0.25);
            background: #fff;
        }

        .form-submit-row {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        .form-note {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        .form-success {
            display: none;
            padding: 14px 18px;
            border-radius: 10px;
            background: rgba(200, 241, 53, 0.2);
            border: 1px solid var(--color-accent);
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            margin-top: 16px;
        }

        .form-success.show {
            display: block;
        }

        @media (max-width: 768px) {
            .form-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .form-field-full {
                grid-column: auto;
            }
            .form-card {
                padding: 22px;
            }
        }

        /* Topic Aggregation */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
            margin-top: 32px;
        }

        .topic-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border);
            background: #fff;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(11, 31, 23, 0.2);
        }

        .topic-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: #e5ede6;
        }

        .topic-card-body {
            padding: 18px;
        }

        .topic-card-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .topic-card-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* Data Tools */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 32px;
        }

        .tool-card {
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            background: #fff;
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .tool-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(11, 31, 23, 0.2);
        }

        .tool-icon {
            font-size: 24px;
            color: var(--color-alert);
        }

        .tool-title {
            font-size: 14px;
            font-weight: 700;
        }

        .tool-desc {
            font-size: 12px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .tools-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 480px) {
            .tools-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        /* Update Calendar */
        .calendar-list {
            margin-top: 32px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 700px;
        }

        .calendar-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            background: #fff;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .calendar-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(4px);
        }

        .calendar-date {
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0;
            min-width: 56px;
        }

        .calendar-day {
            font-size: 20px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }

        .calendar-month {
            font-size: 12px;
            color: var(--color-text-muted);
            font-weight: 600;
        }

        .calendar-info {
            flex: 1;
            font-size: 14px;
            color: var(--color-text-main);
            line-height: 1.6;
        }

        .calendar-badge {
            flex-shrink: 0;
            font-size: 12px;
            font-weight: 700;
            color: var(--color-alert);
            background: rgba(255, 107, 53, 0.1);
            border-radius: var(--radius-pill);
            padding: 4px 12px;
        }

        @media (max-width: 480px) {
            .calendar-item {
                flex-wrap: wrap;
                gap: 10px;
            }
        }

        /* Brand Intro */
        .brand-intro {
            background: var(--color-primary);
            color: var(--color-text-light);
            padding: 56px 0;
            border-radius: var(--radius-lg);
            margin-top: 32px;
        }

        .brand-intro-inner {
            max-width: 880px;
        }

        .brand-intro-title {
            font-size: 24px;
            font-weight: 800;
            margin-bottom: 20px;
            color: #fff;
        }

        .brand-intro-text {
            font-size: 15px;
            line-height: 2.1;
            color: rgba(255, 255, 255, 0.85);
        }

        /* Bottom CTA */
        .bottom-cta {
            text-align: center;
            padding: 56px 0;
        }

        .bottom-cta-title {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 14px;
            color: var(--color-primary);
        }

        .bottom-cta-desc {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 580px;
            margin: 0 auto 24px;
            line-height: 1.9;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 48px 0 32px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links li a {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            transition: color var(--transition-fast);
        }

        .footer-links li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.14);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: rgba(255, 255, 255, 0.55);
        }

        .footer-bottom-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: var(--color-accent);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .site-footer {
                padding: 36px 0 24px;
            }
        }

        /* Utility */
        .flex {
            display: flex;
        }

        .flex-col {
            flex-direction: column;
        }

        .items-center {
            align-items: center;
        }

        .gap-2 {
            gap: 8px;
        }

        .gap-4 {
            gap: 16px;
        }

        .mt-8 {
            margin-top: 8px;
        }

        .mt-16 {
            margin-top: 16px;
        }

        .mt-24 {
            margin-top: 24px;
        }

        .mt-32 {
            margin-top: 32px;
        }

        .w-full {
            width: 100%;
        }

        .text-center {
            text-align: center;
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

/* roulang page: category1 */
:root {
  --color-primary: #0B1F17;
  --color-primary-soft: #133626;
  --color-accent: #C8F135;
  --color-accent-hover: #D9FA58;
  --color-alert: #FF6B35;
  --color-alert-hover: #FF8255;
  --color-bg-light: #F4F7F2;
  --color-bg-white: #FFFFFF;
  --color-text-main: #15231B;
  --color-text-muted: #5B6B62;
  --color-text-light: #E7F0E9;
  --color-text-light-muted: #A9B8AE;
  --color-border: rgba(11, 31, 23, 0.12);
  --color-border-dark: rgba(255, 255, 255, 0.14);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  --shadow-dark: 0 12px 32px rgba(0, 0, 0, 0.28);
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
  --section-space: 60px;
  --card-padding: 24px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.28s ease;
  --transition-slow: 0.35s ease;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-main);
  background: var(--color-bg-light);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}

input,
select {
  font-family: inherit;
  outline: none;
  border: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
}

.section {
  padding: var(--section-space) 0;
}

.section-alt {
  background: var(--color-bg-white);
}

.section-deep {
  background: var(--color-primary);
  color: var(--color-text-light);
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--color-alert);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.3;
  color: inherit;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 800px;
  line-height: 1.9;
}

.section-deep .section-desc {
  color: var(--color-text-light-muted);
}

.text-highlight {
  color: var(--color-accent);
  font-weight: 700;
}

.text-alert {
  color: var(--color-alert);
  font-weight: 700;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  transition: all var(--transition-base);
  line-height: 1.4;
  letter-spacing: 0.3px;
  white-space: nowrap;
  cursor: pointer;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-alert);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: transparent;
  color: inherit;
  border: 2px solid currentColor;
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost-light {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
}

/* Site Header */
.site-header {
  position: sticky;
  top: 12px;
  z-index: 100;
  padding: 0 28px;
  margin-top: 16px;
}

.main-nav {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(11, 31, 23, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-pill);
  padding: 10px 20px;
  box-shadow: var(--shadow-dark);
  border: 1px solid var(--color-border-dark);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.5px;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent);
  flex-shrink: 0;
}

.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.nav-list a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 20px;
  color: var(--color-text-light-muted);
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-list a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-list a.active {
  color: var(--color-primary);
  background: var(--color-accent);
  font-weight: 700;
}

.nav-toggle {
  display: none;
  font-size: 24px;
  color: #fff;
  padding: 4px 8px;
  border-radius: 8px;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Category header */
.category-header {
  padding: 48px 0 24px;
}

.category-header-top {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
}

.category-header-main {
  flex: 1;
  min-width: 0;
}

.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  background: var(--color-primary);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.category-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.category-summary {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 780px;
  line-height: 1.9;
}

.category-header-side {
  flex-shrink: 0;
  min-width: 220px;
}

.live-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 24px;
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-main);
  box-shadow: var(--shadow-sm);
}

.live-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-alert);
  animation: pulse-dot 1.8s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.7); }
}

/* Filter toolbar */
.filter-toolbar {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.filter-select {
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-light);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-main);
  transition: border-color var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235B6B62' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
  cursor: pointer;
}

.filter-select:hover, .filter-select:focus {
  border-color: var(--color-accent);
}

.filter-btn {
  padding: 8px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-bg-white);
}

.filter-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.filter-reset {
  margin-left: auto;
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-alert);
  transition: color var(--transition-fast);
  cursor: pointer;
}

.filter-reset:hover {
  color: var(--color-alert-hover);
}

/* Match list */
.match-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.match-item {
  display: grid;
  grid-template-columns: 120px 1fr 200px;
  gap: 16px;
  align-items: center;
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.match-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  border-color: rgba(11, 31, 23, 0.2);
}

.match-league {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
}

.match-league-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 8px;
  background: var(--color-bg-light);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.match-league-time {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
}

.match-teams {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.match-team-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.match-team-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-main);
}

.match-score {
  font-family: "SF Mono", "Consolas", "Noto Sans SC", monospace;
  font-size: 16px;
  font-weight: 800;
  color: var(--color-primary);
  min-width: 28px;
  text-align: center;
  background: var(--color-bg-light);
  border-radius: 6px;
  padding: 2px 6px;
  margin-left: auto;
}

.match-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-alert);
}

.match-status.live {
  color: var(--color-alert);
}

.match-status.finished {
  color: var(--color-text-muted);
  font-weight: 600;
}

.match-status.upcoming {
  color: var(--color-primary);
  font-weight: 600;
}

.match-events {
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.match-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
}

.match-event-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 6px;
  background: #FFF3ED;
  color: var(--color-alert);
  font-size: 12px;
  font-weight: 600;
}

.match-event-badge.goal {
  background: #EFF8E5;
  color: var(--color-primary);
}

/* Data sidebar */
.data-sidebar {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.data-sidebar-title {
  font-size: 16px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.data-sidebar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.data-sidebar-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.data-sidebar-item:last-child {
  border-bottom: none;
}

.data-sidebar-label {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 600;
}

.data-sidebar-value {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
}

.data-sidebar-value.hot {
  color: var(--color-alert);
}

/* Stats section */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.stat-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-value.accent {
  color: var(--color-alert);
}

.stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 600;
}

/* Topics section */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.topic-card {
  background: var(--color-bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.topic-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.topic-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.topic-card-body {
  padding: 16px 20px;
}

.topic-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.topic-card-desc {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* CTA section */
.cta-card {
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  color: #fff;
}

.cta-card-text {
  flex: 1;
  min-width: 260px;
}

.cta-card-title {
  font-size: 22px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 6px;
}

.cta-card-desc {
  font-size: 15px;
  color: var(--color-text-light-muted);
  line-height: 1.8;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 880px;
}

.faq-item {
  background: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.faq-item:hover {
  border-color: rgba(11, 31, 23, 0.24);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  background: transparent;
  width: 100%;
  text-align: left;
  transition: all var(--transition-fast);
}

.faq-question:hover {
  background: rgba(11, 31, 23, 0.03);
}

.faq-question:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -2px;
}

.faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--color-bg-light);
  font-size: 16px;
  font-weight: 800;
  color: var(--color-primary);
  transition: transform var(--transition-fast);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--color-accent);
}

.faq-answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow);
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.9;
  background: var(--color-bg-light);
  border-top: 1px solid var(--color-border);
  border-top-color: transparent;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 16px 20px;
  border-top-color: var(--color-border);
}

.faq-answer p {
  margin-bottom: 8px;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* Bottom return */
.bottom-return {
  display: flex;
  justify-content: center;
  padding: 16px 0 8px;
}

/* Site footer */
.site-footer {
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: 48px 0 24px;
  border-top: 1px solid var(--color-border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 10px;
}

.footer-brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 12px var(--color-accent);
}

.footer-desc {
  font-size: 14px;
  color: var(--color-text-light-muted);
  line-height: 1.8;
  max-width: 320px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: 0.3px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-text-light-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-light-muted);
}

.footer-bottom-links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-bottom-links a {
  color: var(--color-text-light-muted);
  font-size: 13px;
}

.footer-bottom-links a:hover {
  color: var(--color-accent);
}

/* Responsive */
@media (max-width: 1024px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .site-header {
    padding: 0 16px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .topics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .match-item {
    grid-template-columns: 100px 1fr 160px;
    gap: 12px;
    padding: 14px 16px;
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 0 12px;
    top: 8px;
    margin-top: 8px;
  }
  .main-nav {
    padding: 8px 16px;
  }
  .nav-toggle {
    display: inline-block;
  }
  .nav-list {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: rgba(11, 31, 23, 0.96);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-md);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    box-shadow: var(--shadow-dark);
    border: 1px solid var(--color-border-dark);
  }
  .nav-list.open {
    display: flex;
  }
  .nav-list a {
    display: block;
    padding: 10px 16px;
    border-radius: 10px;
    text-align: center;
  }
  .category-title {
    font-size: 26px;
  }
  .category-header {
    padding: 32px 0 16px;
  }
  .filter-toolbar {
    padding: 12px 16px;
    gap: 10px;
  }
  .match-item {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 14px 16px;
  }
  .match-league {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  .match-meta {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .topics-grid {
    grid-template-columns: 1fr;
  }
  .cta-card {
    padding: 28px 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .section {
    padding: 48px 0;
  }
  .section-title {
    font-size: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-bottom-links {
    margin-left: 0;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 14px;
    line-height: 1.7;
  }
  .container {
    padding-left: 14px;
    padding-right: 14px;
  }
  .section {
    padding: 36px 0;
  }
  .category-title {
    font-size: 22px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .stat-value {
    font-size: 24px;
  }
  .filter-toolbar {
    padding: 10px 12px;
  }
  .filter-select {
    font-size: 12px;
    padding: 6px 10px;
    padding-right: 30px;
  }
  .cta-card {
    padding: 22px 18px;
  }
  .cta-card-title {
    font-size: 19px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .faq-question {
    padding: 14px 16px;
    font-size: 14px;
  }
  .faq-answer {
    padding: 0 16px;
    font-size: 13px;
  }
}

/* roulang page: category3 */
:root {
            --color-primary: #0B1F17;
            --color-primary-soft: #133626;
            --color-accent: #C8F135;
            --color-accent-hover: #D9FA58;
            --color-alert: #FF6B35;
            --color-alert-hover: #FF8255;
            --color-bg-light: #F4F7F2;
            --color-bg-white: #FFFFFF;
            --color-text-main: #15231B;
            --color-text-muted: #5B6B62;
            --color-text-light: #E7F0E9;
            --color-text-light-muted: #A9B8AE;
            --color-border: rgba(11, 31, 23, 0.12);
            --color-border-dark: rgba(255, 255, 255, 0.14);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark: 0 12px 32px rgba(0, 0, 0, 0.28);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --section-space: 80px;
            --card-padding: 24px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.35s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background: var(--color-bg-light);
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            outline: none;
        }
        input,
        select {
            font-family: inherit;
            outline: none;
            border: none;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 28px;
            padding-right: 28px;
        }
        .section {
            padding: var(--section-space) 0;
        }
        .section-alt {
            background: var(--color-bg-white);
        }
        .section-deep {
            background: var(--color-primary);
            color: var(--color-text-light);
        }
        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-alert);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            color: inherit;
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 800px;
            line-height: 1.9;
        }
        .section-deep .section-desc {
            color: var(--color-text-light-muted);
        }
        .text-highlight {
            color: var(--color-accent);
            font-weight: 700;
        }
        .text-alert {
            color: var(--color-alert);
            font-weight: 700;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            line-height: 1.4;
            letter-spacing: 0.3px;
            white-space: nowrap;
            cursor: pointer;
        }
        .btn:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
        }
        .btn-primary:hover {
            background: var(--color-alert);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-secondary {
            background: transparent;
            color: inherit;
            border: 2px solid currentColor;
        }
        .btn-secondary:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        .btn-ghost-light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }
        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.45);
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 12px;
            z-index: 1000;
            padding: 0 24px;
            margin-top: 16px;
            transition: all var(--transition-base);
        }
        .site-header.scrolled {
            top: 8px;
        }
        .main-nav {
            max-width: var(--container-max);
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(11, 31, 23, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-pill);
            padding: 12px 20px;
            box-shadow: var(--shadow-dark);
            transition: all var(--transition-base);
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
        }
        .brand-dot {
            width: 12px;
            height: 12px;
            background: var(--color-accent);
            border-radius: 50%;
            display: inline-block;
            box-shadow: 0 0 12px rgba(200, 241, 53, 0.6);
        }
        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 6px;
            margin: 0;
            padding: 0;
        }
        .nav-list li a {
            display: inline-block;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            color: var(--color-text-light-muted);
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition-fast);
        }
        .nav-list li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .nav-list li a.active {
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 800;
        }
        .nav-toggle {
            display: none;
            color: #fff;
            font-size: 26px;
            padding: 4px 8px;
            border-radius: 8px;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* 分类页头部 */
        .page-header {
            padding: 48px 0 8px;
            background: var(--color-bg-light);
            border-bottom: 1px solid var(--color-border);
        }
        .page-header .container {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }
        .page-header-content {
            flex: 1 1 500px;
        }
        .page-header h1 {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.25;
            margin: 0 0 10px;
            color: var(--color-primary);
            letter-spacing: 0.5px;
        }
        .page-header .breadcrumb {
            font-size: 13px;
            color: var(--color-text-muted);
            margin-bottom: 12px;
        }
        .page-header .breadcrumb a {
            color: var(--color-text-muted);
            text-decoration: underline;
        }
        .page-header .breadcrumb a:hover {
            color: var(--color-primary);
        }
        .page-header .breadcrumb span {
            margin: 0 6px;
        }
        .page-header .summary {
            font-size: 17px;
            color: var(--color-text-muted);
            line-height: 1.9;
            max-width: 700px;
        }
        .page-header-stats {
            flex: 0 0 280px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .header-stat {
            background: var(--color-bg-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            box-shadow: var(--shadow-sm);
        }
        .header-stat .stat-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .header-stat .stat-label {
            font-size: 13px;
            color: var(--color-text-muted);
        }

        /* 筛选工具条 */
        .filter-bar {
            background: var(--color-bg-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 32px;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-label {
            font-size: 13px;
            color: var(--color-text-muted);
            font-weight: 600;
        }
        .filter-select {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            background: var(--color-bg-light);
            font-size: 14px;
            color: var(--color-text-main);
            cursor: pointer;
            min-width: 120px;
        }
        .filter-select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(200, 241, 53, 0.25);
        }
        .filter-btn {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            background: var(--color-primary);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            transition: all var(--transition-fast);
        }
        .filter-btn:hover {
            background: var(--color-primary-soft);
            transform: translateY(-1px);
        }

        /* 列表卡片 */
        .analysis-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .analysis-card {
            background: var(--color-bg-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: row;
            transition: all var(--transition-base);
        }
        .analysis-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(11, 31, 23, 0.2);
        }
        .analysis-card-img {
            flex: 0 0 200px;
            min-height: 160px;
            background-position: center;
            background-size: cover;
            position: relative;
        }
        .analysis-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 31, 23, 0.2) 0%, rgba(11, 31, 23, 0.6) 100%);
        }
        .analysis-card-body {
            flex: 1;
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
        }
        .analysis-card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }
        .tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 0.3px;
            background: rgba(200, 241, 53, 0.18);
            color: var(--color-primary);
            border: 1px solid rgba(200, 241, 53, 0.5);
        }
        .tag-alert {
            background: rgba(255, 107, 53, 0.12);
            color: var(--color-alert);
            border-color: rgba(255, 107, 53, 0.4);
        }
        .tag-dark {
            background: rgba(11, 31, 23, 0.08);
            color: var(--color-primary);
            border-color: rgba(11, 31, 23, 0.2);
        }
        .analysis-card h3 {
            font-size: 19px;
            font-weight: 800;
            line-height: 1.4;
            margin: 0 0 8px;
            color: var(--color-text-main);
        }
        .analysis-card p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.85;
            margin: 0 0 12px;
            flex: 1;
        }
        .analysis-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--color-text-muted);
        }
        .analysis-card-meta .trend-up {
            color: #1B8A3D;
            font-weight: 700;
        }
        .analysis-card-meta .trend-hot {
            color: var(--color-alert);
            font-weight: 700;
        }

        /* 侧栏布局 */
        .content-with-sidebar {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 28px;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .sidebar-card {
            background: var(--color-bg-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 20px;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h4 {
            font-size: 16px;
            font-weight: 800;
            margin: 0 0 14px;
            color: var(--color-primary);
        }
        .sidebar-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
        }
        .sidebar-item:last-child {
            border-bottom: none;
        }
        .sidebar-item-label {
            font-size: 14px;
            color: var(--color-text-muted);
        }
        .sidebar-item-value {
            font-size: 15px;
            font-weight: 800;
            color: var(--color-primary);
        }
        .sidebar-item-value.hot {
            color: var(--color-alert);
        }
        .sidebar-item-value.up {
            color: #1B8A3D;
        }

        /* 专题入口 */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: var(--color-bg-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .topic-card-img {
            aspect-ratio: 16/9;
            background-position: center;
            background-size: cover;
        }
        .topic-card-body {
            padding: 18px 20px;
        }
        .topic-card h3 {
            font-size: 17px;
            font-weight: 800;
            margin: 0 0 6px;
            color: var(--color-text-main);
        }
        .topic-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0 0 12px;
            line-height: 1.7;
        }
        .topic-card a {
            font-size: 14px;
            font-weight: 700;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .topic-card a:hover {
            color: var(--color-alert);
        }

        /* 快速解答 */
        .quick-answers {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .quick-card {
            background: var(--color-bg-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
        }
        .quick-card .quick-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
            display: block;
            margin-bottom: 8px;
        }
        .quick-card h4 {
            font-size: 15px;
            font-weight: 800;
            margin: 0 0 6px;
            color: var(--color-text-main);
        }
        .quick-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.75;
        }

        /* FAQ 手风琴 */
        .faq-list {
            max-width: 800px;
        }
        .faq-item {
            background: var(--color-bg-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 700;
            font-size: 15px;
            color: var(--color-text-main);
            user-select: none;
            transition: all var(--transition-fast);
            background: transparent;
        }
        .faq-question:hover {
            background: rgba(11, 31, 23, 0.04);
        }
        .faq-icon {
            flex: 0 0 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            transition: all var(--transition-base);
        }
        .faq-item.open .faq-icon {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.85;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 16px 60px;
        }

        /* 订阅表单 */
        .subscribe-card {
            background: var(--color-primary);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            color: var(--color-text-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            box-shadow: var(--shadow-dark);
        }
        .subscribe-card h3 {
            font-size: 24px;
            font-weight: 800;
            margin: 0 0 8px;
            color: #fff;
        }
        .subscribe-card p {
            font-size: 14px;
            color: var(--color-text-light-muted);
            margin: 0;
            max-width: 480px;
            line-height: 1.8;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }
        .subscribe-form input {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 14px;
            min-width: 240px;
            transition: all var(--transition-fast);
        }
        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .subscribe-form input:focus {
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, 0.18);
            box-shadow: 0 0 0 3px rgba(200, 241, 53, 0.2);
        }
        .subscribe-form select {
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            font-size: 14px;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .subscribe-form select option {
            color: var(--color-text-main);
        }

        /* 页脚 */
        .site-footer {
            background: var(--color-primary);
            color: var(--color-text-light-muted);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand-dot {
            width: 10px;
            height: 10px;
            background: var(--color-accent);
            border-radius: 50%;
            display: inline-block;
        }
        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: var(--color-text-light-muted);
            max-width: 380px;
            margin: 0;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 12px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--color-text-light-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--color-text-light-muted);
        }
        .footer-bottom-links {
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .footer-bottom-links a {
            color: var(--color-text-light-muted);
            transition: color var(--transition-fast);
        }
        .footer-bottom-links a:hover {
            color: var(--color-accent);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .site-header {
                padding: 0 16px;
                margin-top: 12px;
            }
            .main-nav {
                padding: 10px 16px;
            }
            .nav-list li a {
                padding: 8px 12px;
                font-size: 13px;
            }
            .content-with-sidebar {
                grid-template-columns: 1fr;
            }
            .sidebar {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .sidebar-card {
                flex: 1 1 280px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .quick-answers {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-list {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                right: 0;
                left: 0;
                flex-direction: column;
                background: rgba(11, 31, 23, 0.98);
                backdrop-filter: blur(14px);
                border-radius: var(--radius-lg);
                padding: 16px;
                gap: 4px;
                box-shadow: var(--shadow-dark);
                border: 1px solid rgba(255, 255, 255, 0.12);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li {
                width: 100%;
            }
            .nav-list li a {
                display: block;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
                text-align: left;
            }
            .nav-list li a.active {
                background: var(--color-accent);
                color: var(--color-primary);
            }
            .page-header h1 {
                font-size: 28px;
            }
            .analysis-card {
                flex-direction: column;
            }
            .analysis-card-img {
                flex: 0 0 180px;
                width: 100%;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .quick-answers {
                grid-template-columns: 1fr;
            }
            .subscribe-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                width: 100%;
            }
            .subscribe-form input {
                flex: 1;
                min-width: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .section-title {
                font-size: 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            .site-header {
                padding: 0 12px;
                margin-top: 8px;
            }
            .main-nav {
                padding: 8px 14px;
                border-radius: var(--radius-pill);
            }
            .brand {
                font-size: 18px;
            }
            .page-header h1 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-card {
                padding: 24px 20px;
            }
            .subscribe-form {
                flex-direction: column;
                width: 100%;
            }
            .subscribe-form input {
                width: 100%;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0B1F17;
            --color-primary-soft: #133626;
            --color-accent: #C8F135;
            --color-accent-hover: #D9FA58;
            --color-alert: #FF6B35;
            --color-alert-hover: #FF8255;
            --color-bg-light: #F4F7F2;
            --color-bg-white: #FFFFFF;
            --color-text-main: #15231B;
            --color-text-muted: #5B6B62;
            --color-text-light: #E7F0E9;
            --color-text-light-muted: #A9B8AE;
            --color-border: rgba(11, 31, 23, 0.12);
            --color-border-dark: rgba(255, 255, 255, 0.14);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark: 0 12px 32px rgba(0, 0, 0, 0.28);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --section-space: 80px;
            --card-padding: 24px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.35s ease;
        }

        @media (max-width: 1024px) {
            :root {
                --section-space: 60px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-space: 48px;
                --card-padding: 18px;
            }
        }

        @media (max-width: 480px) {
            :root {
                --section-space: 36px;
            }
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background: var(--color-bg-light);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            outline: none;
        }

        input,
        select {
            font-family: inherit;
            outline: none;
            border: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 28px;
            padding-right: 28px;
        }

        @media (max-width: 1024px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }
            body {
                font-size: 15px;
                line-height: 1.7;
            }
        }

        .section {
            padding: var(--section-space) 0;
        }

        .section-alt {
            background: var(--color-bg-white);
        }

        .section-deep {
            background: var(--color-primary);
            color: var(--color-text-light);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-alert);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            color: inherit;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 800px;
            line-height: 1.9;
        }

        .section-deep .section-desc {
            color: var(--color-text-light-muted);
        }

        .text-highlight {
            color: var(--color-accent);
            font-weight: 700;
        }

        .text-alert {
            color: var(--color-alert);
            font-weight: 700;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            line-height: 1.4;
            letter-spacing: 0.3px;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        .btn-primary:hover {
            background: var(--color-alert);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary {
            background: transparent;
            color: inherit;
            border: 2px solid currentColor;
        }

        .btn-secondary:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-ghost-light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
            transform: translateY(-1px);
            box-shadow: var(--shadow-dark);
        }

        /* Header Navigation */
        .site-header {
            position: fixed;
            top: 16px;
            left: 24px;
            right: 24px;
            z-index: 1000;
            transition: all var(--transition-base);
        }

        .site-header.scrolled {
            top: 12px;
            left: 24px;
            right: 24px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(11, 31, 23, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-pill);
            padding: 10px 20px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: var(--shadow-dark);
            transition: all var(--transition-base);
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
        }

        .brand:hover {
            color: var(--color-accent);
        }

        .brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-accent);
            box-shadow: 0 0 10px rgba(200, 241, 53, 0.7);
            flex-shrink: 0;
        }

        .nav-toggle {
            display: none;
            font-size: 22px;
            color: #fff;
            padding: 6px 10px;
            border-radius: 8px;
            transition: all var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 4px;
        }

        .nav-list li a {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-light-muted);
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
        }

        .nav-list li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-list li a.active {
            color: var(--color-primary);
            background: var(--color-accent);
            font-weight: 700;
        }

        @media (max-width: 1024px) {
            .site-header {
                left: 16px;
                right: 16px;
                top: 12px;
            }
            .site-header.scrolled {
                left: 16px;
                right: 16px;
                top: 10px;
            }
            .main-nav {
                padding: 8px 16px;
            }
            .nav-list li a {
                padding: 8px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                left: 12px;
                right: 12px;
                top: 10px;
            }
            .site-header.scrolled {
                left: 12px;
                right: 12px;
                top: 8px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 16px 0 8px;
                gap: 6px;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            .brand {
                font-size: 18px;
            }
            .nav-list li a {
                padding: 10px 14px;
                font-size: 14px;
            }
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding-top: 110px;
            padding-bottom: 0;
            background: var(--color-bg-light);
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }

        .breadcrumb-nav a:hover {
            color: var(--color-primary);
        }

        .breadcrumb-sep {
            color: var(--color-text-muted);
            opacity: 0.6;
        }

        .breadcrumb-current {
            color: var(--color-primary);
            font-weight: 700;
        }

        @media (max-width: 768px) {
            .breadcrumb-section {
                padding-top: 100px;
            }
        }

        @media (max-width: 480px) {
            .breadcrumb-section {
                padding-top: 90px;
            }
        }

        /* Category Header */
        .category-header-section {
            padding: 32px 0 0;
            background: var(--color-bg-light);
        }

        .category-header-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
            padding: 36px 40px;
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .category-header-content h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .category-header-content h1 .accent-dot {
            color: var(--color-alert);
        }

        .category-header-content p {
            font-size: 16px;
            color: var(--color-text-muted);
            line-height: 1.9;
            max-width: 560px;
        }

        .category-header-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-self: end;
            justify-content: flex-end;
        }

        .mini-stat-badge {
            display: inline-flex;
            flex-direction: column;
            padding: 14px 20px;
            background: var(--color-primary);
            border-radius: var(--radius-md);
            color: #fff;
            min-width: 120px;
        }

        .mini-stat-badge .stat-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
        }

        .mini-stat-badge .stat-label {
            font-size: 12px;
            color: var(--color-text-light-muted);
            margin-top: 4px;
            letter-spacing: 0.3px;
        }

        @media (max-width: 768px) {
            .category-header-inner {
                grid-template-columns: 1fr;
                gap: 20px;
                padding: 24px;
            }
            .category-header-stats {
                justify-content: flex-start;
            }
            .category-header-content h1 {
                font-size: 26px;
            }
        }

        @media (max-width: 480px) {
            .category-header-inner {
                padding: 18px;
                border-radius: 14px;
            }
            .category-header-content h1 {
                font-size: 22px;
            }
            .mini-stat-badge {
                min-width: 100px;
                padding: 10px 14px;
            }
        }

        /* Filter Toolbar */
        .filter-toolbar-section {
            padding: 24px 0 0;
            background: var(--color-bg-light);
        }

        .filter-toolbar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-group-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-text-muted);
            letter-spacing: 0.3px;
            margin-right: 4px;
        }

        .filter-select {
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            background: var(--color-bg-light);
            font-size: 14px;
            color: var(--color-text-main);
            transition: border-color var(--transition-fast);
            min-width: 130px;
            cursor: pointer;
        }

        .filter-select:focus {
            border-color: var(--color-accent);
            outline: 2px solid rgba(200, 241, 53, 0.3);
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            padding: 7px 14px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            background: var(--color-bg-light);
            border: 1px solid var(--color-border);
            color: var(--color-text-muted);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        .filter-chip.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .filter-reset {
            margin-left: auto;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-alert);
            transition: color var(--transition-fast);
        }

        .filter-reset:hover {
            color: var(--color-alert-hover);
        }

        @media (max-width: 768px) {
            .filter-toolbar {
                padding: 12px 16px;
                gap: 8px;
            }
            .filter-reset {
                margin-left: 0;
            }
        }

        @media (max-width: 480px) {
            .filter-select {
                min-width: 100%;
                width: 100%;
            }
            .filter-chip {
                font-size: 12px;
                padding: 6px 10px;
            }
        }

        /* Insights List Main */
        .insights-list-section {
            padding: 32px 0 0;
            background: var(--color-bg-light);
        }

        .insights-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 28px;
            align-items: start;
        }

        .insights-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .insight-card {
            display: grid;
            grid-template-columns: 260px 1fr;
            gap: 20px;
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .insight-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
            border-color: rgba(11, 31, 23, 0.2);
        }

        .insight-card-img {
            position: relative;
            overflow: hidden;
            min-height: 180px;
            background: var(--color-primary-soft);
        }

        .insight-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .insight-card:hover .insight-card-img img {
            transform: scale(1.04);
        }

        .insight-card-img .img-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            background: rgba(11, 31, 23, 0.85);
            color: var(--color-accent);
            font-size: 12px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            letter-spacing: 0.3px;
        }

        .insight-card-body {
            padding: 20px 20px 20px 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .insight-card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .insight-tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            background: var(--color-bg-light);
            border: 1px solid var(--color-border);
            color: var(--color-text-muted);
            letter-spacing: 0.3px;
        }

        .insight-tag.trend-up {
            color: var(--color-primary);
            border-color: rgba(200, 241, 53, 0.5);
            background: rgba(200, 241, 53, 0.15);
        }

        .insight-tag.hot {
            color: var(--color-alert);
            border-color: rgba(255, 107, 53, 0.4);
            background: rgba(255, 107, 53, 0.08);
        }

        .insight-card-title {
            font-size: 18px;
            font-weight: 800;
            line-height: 1.4;
            color: var(--color-primary);
            transition: color var(--transition-fast);
        }

        .insight-card-title a:hover {
            color: var(--color-alert);
        }

        .insight-card-summary {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.8;
            flex: 1;
        }

        .insight-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--color-text-muted);
            padding-top: 8px;
            border-top: 1px solid var(--color-border);
        }

        .insight-card-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        .insight-card-meta .meta-date {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .sidebar-sticky {
            position: sticky;
            top: 90px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            padding: 20px;
        }

        .sidebar-card.deep {
            background: var(--color-primary);
            border-color: var(--color-border-dark);
            color: #fff;
        }

        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 800;
            margin-bottom: 14px;
            color: inherit;
        }

        .sidebar-card.deep h3 {
            color: var(--color-accent);
        }

        .hot-metric-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .hot-metric-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 12px;
            background: var(--color-bg-light);
            border-radius: var(--radius-sm);
            font-size: 14px;
        }

        .hot-metric-item .metric-name {
            color: var(--color-text-muted);
            font-weight: 600;
        }

        .hot-metric-item .metric-value {
            font-weight: 800;
            color: var(--color-primary);
            font-size: 16px;
        }

        .sidebar-card.deep .hot-metric-item {
            background: rgba(255, 255, 255, 0.06);
        }

        .sidebar-card.deep .hot-metric-item .metric-name {
            color: var(--color-text-light-muted);
        }

        .sidebar-card.deep .hot-metric-item .metric-value {
            color: var(--color-accent);
        }

        .update-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .update-item {
            display: flex;
            gap: 10px;
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.6;
        }

        .update-item .update-time {
            font-weight: 700;
            color: var(--color-primary);
            flex-shrink: 0;
        }

        .sidebar-card.deep .update-item {
            color: var(--color-text-light-muted);
        }

        .sidebar-card.deep .update-item .update-time {
            color: var(--color-accent);
        }

        @media (max-width: 900px) {
            .insights-grid {
                grid-template-columns: 1fr;
            }
            .sidebar-sticky {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        @media (max-width: 680px) {
            .insight-card {
                grid-template-columns: 1fr;
            }
            .insight-card-img {
                min-height: 200px;
            }
            .insight-card-body {
                padding: 16px 20px 20px;
            }
            .sidebar-sticky {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            .insight-card-img {
                min-height: 160px;
            }
            .insight-card-body {
                padding: 14px 16px 16px;
            }
            .insight-card-title {
                font-size: 16px;
            }
        }

        /* Topic Section */
        .topic-section {
            padding: var(--section-space) 0 0;
            background: var(--color-bg-light);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 20px;
        }

        .topic-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .topic-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .topic-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-primary-soft);
        }

        .topic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .topic-card:hover .topic-card-img img {
            transform: scale(1.05);
        }

        .topic-card-body {
            padding: 16px 18px;
        }

        .topic-card-body h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .topic-card-body p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        @media (max-width: 900px) {
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 600px) {
            .topic-grid {
                grid-template-columns: 1fr;
            }
        }

        /* Trend Section */
        .trend-section {
            padding: var(--section-space) 0 0;
            background: var(--color-bg-light);
        }

        .trend-panel {
            background: var(--color-primary);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            color: #fff;
            box-shadow: var(--shadow-dark);
        }

        .trend-panel .section-title {
            color: #fff;
            margin-bottom: 6px;
        }

        .trend-panel .section-desc {
            color: var(--color-text-light-muted);
            margin-bottom: 24px;
        }

        .trend-bars {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .trend-bar-item {
            display: grid;
            grid-template-columns: 120px 1fr 60px;
            align-items: center;
            gap: 14px;
            font-size: 14px;
        }

        .trend-bar-label {
            font-weight: 700;
            color: var(--color-text-light);
            letter-spacing: 0.3px;
        }

        .trend-bar-track {
            height: 10px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-pill);
            overflow: hidden;
        }

        .trend-bar-fill {
            height: 100%;
            border-radius: var(--radius-pill);
            background: var(--color-accent);
            transition: width var(--transition-slow);
        }

        .trend-bar-fill.warm {
            background: var(--color-alert);
        }

        .trend-bar-value {
            font-weight: 800;
            color: var(--color-accent);
            text-align: right;
        }

        .trend-bar-value.warm {
            color: var(--color-alert);
        }

        @media (max-width: 600px) {
            .trend-panel {
                padding: 24px 18px;
            }
            .trend-bar-item {
                grid-template-columns: 80px 1fr 48px;
                gap: 8px;
                font-size: 12px;
            }
        }

        /* FAQ Section */
        .faq-section {
            padding: var(--section-space) 0 0;
            background: var(--color-bg-light);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 20px;
        }

        .faq-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            border-color: rgba(11, 31, 23, 0.2);
        }

        .faq-item.open {
            border-color: var(--color-accent);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            width: 100%;
            text-align: left;
            font-size: 15px;
            font-weight: 700;
            color: var(--color-primary);
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-alert);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-bg-light);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 800;
            color: var(--color-primary);
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 20px;
        }

        .faq-answer-inner {
            padding: 16px 18px;
            background: var(--color-bg-light);
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.9;
        }

        @media (max-width: 480px) {
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
                gap: 8px;
            }
            .faq-answer-inner {
                font-size: 13px;
                padding: 12px 14px;
            }
        }

        /* CTA Section */
        .cta-section {
            padding: var(--section-space) 0 0;
            background: var(--color-bg-light);
        }

        .cta-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            align-items: center;
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-md);
            padding: 36px 40px;
        }

        .cta-card-content h2 {
            font-size: 24px;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.3;
        }

        .cta-card-content p {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.9;
            margin-bottom: 20px;
            max-width: 480px;
        }

        .cta-card-form {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-form-row {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .cta-form-input {
            flex: 1;
            min-width: 140px;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            background: var(--color-bg-light);
            font-size: 14px;
            color: var(--color-text-main);
            transition: all var(--transition-fast);
        }

        .cta-form-input:focus {
            border-color: var(--color-accent);
            outline: 2px solid rgba(200, 241, 53, 0.3);
            background: #fff;
        }

        .cta-form-select {
            flex: 1;
            min-width: 140px;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            background: var(--color-bg-light);
            font-size: 14px;
            color: var(--color-text-main);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .cta-form-select:focus {
            border-color: var(--color-accent);
            outline: 2px solid rgba(200, 241, 53, 0.3);
        }

        .cta-form-submit {
            align-self: flex-start;
            padding: 12px 28px;
            border-radius: 12px;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }

        .cta-form-submit:hover {
            background: var(--color-alert);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .cta-form-submit:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
        }

        .cta-note {
            font-size: 12px;
            color: var(--color-text-muted);
            opacity: 0.7;
        }

        @media (max-width: 768px) {
            .cta-card {
                grid-template-columns: 1fr;
                padding: 24px;
            }
            .cta-card-content h2 {
                font-size: 20px;
            }
        }

        @media (max-width: 480px) {
            .cta-card {
                padding: 18px;
            }
            .cta-form-submit {
                width: 100%;
            }
        }

        /* Back Home */
        .back-home-section {
            padding: 32px 0 var(--section-space);
            background: var(--color-bg-light);
            text-align: center;
        }

        .back-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-pill);
            background: var(--color-primary);
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            transition: all var(--transition-base);
        }

        .back-home-link:hover {
            background: var(--color-alert);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: var(--color-text-light);
            padding: 52px 0 28px;
            border-top: 1px solid var(--color-border-dark);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--color-accent);
            box-shadow: 0 0 10px rgba(200, 241, 53, 0.6);
        }

        .footer-desc {
            font-size: 13px;
            color: var(--color-text-light-muted);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links li a {
            font-size: 13px;
            color: var(--color-text-light-muted);
            transition: color var(--transition-fast);
        }

        .footer-links li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px 18px;
            font-size: 12px;
            color: var(--color-text-light-muted);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }

        .footer-bottom-links a {
            color: var(--color-text-light-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: var(--color-accent);
        }

        .footer-bottom-links span {
            opacity: 0.5;
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 600px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .footer-bottom-links {
                margin-left: 0;
            }
        }

/* roulang page: category4 */
:root {
  --color-primary: #0B1F17;
  --color-primary-soft: #133626;
  --color-accent: #C8F135;
  --color-accent-hover: #D9FA58;
  --color-alert: #FF6B35;
  --color-alert-hover: #FF8255;
  --color-bg-light: #F4F7F2;
  --color-bg-white: #FFFFFF;
  --color-text-main: #15231B;
  --color-text-muted: #5B6B62;
  --color-text-light: #E7F0E9;
  --color-text-light-muted: #A9B8AE;
  --color-border: rgba(11, 31, 23, 0.12);
  --color-border-dark: rgba(255, 255, 255, 0.14);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  --shadow-dark: 0 12px 32px rgba(0, 0, 0, 0.28);
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
  --section-space: 80px;
  --card-padding: 24px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.28s ease;
  --transition-slow: 0.35s ease;
}
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-main);
  background: var(--color-bg-light);
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}
input, select {
  font-family: inherit;
  outline: none;
  border: none;
}
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 28px;
  padding-right: 28px;
}
.section {
  padding: var(--section-space) 0;
}
.section-alt {
  background: var(--color-bg-white);
}
.section-deep {
  background: var(--color-primary);
  color: var(--color-text-light);
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--color-alert);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-title {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.3;
  color: inherit;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 800px;
  line-height: 1.9;
}
.section-deep .section-desc {
  color: var(--color-text-light-muted);
}
.text-highlight {
  color: var(--color-accent);
  font-weight: 700;
}
.text-alert {
  color: var(--color-alert);
  font-weight: 700;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  transition: all var(--transition-base);
  line-height: 1.4;
  letter-spacing: 0.3px;
  white-space: nowrap;
  cursor: pointer;
}
.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-alert);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}
.btn-secondary {
  background: transparent;
  color: inherit;
  border: 2px solid currentColor;
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-ghost-light {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
}
/* Header Navigation */
.site-header {
  position: relative;
  z-index: 1000;
  padding-top: 16px;
  transition: all var(--transition-base);
}
.site-header.scrolled {
  position: sticky;
  top: 0;
  padding-top: 12px;
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 22px;
  background: rgba(11, 31, 23, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: var(--shadow-md);
  height: 66px;
  transition: all var(--transition-base);
}
.site-header.scrolled .main-nav {
  background: rgba(11, 31, 23, 0.95);
  box-shadow: var(--shadow-lg);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
}
.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(200, 241, 53, 0.2);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-list li a {
  display: block;
  padding: 10px 18px;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 600;
  font-size: 15px;
  border-radius: 999px;
  transition: all var(--transition-fast);
}
.nav-list li a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}
.nav-list li a.active {
  color: var(--color-primary);
  background: var(--color-accent);
  font-weight: 700;
}
.nav-toggle {
  display: none;
  font-size: 26px;
  color: #fff;
  padding: 6px 10px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  transition: all var(--transition-fast);
}
.nav-toggle:hover {
  background: rgba(255,255,255,0.16);
}
/* Page Hero */
.page-hero {
  padding: 64px 0 48px;
  background: var(--color-bg-light);
}
.page-hero-wrap {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.page-hero-main {
  max-width: 720px;
}
.page-hero h1 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.page-hero .lead {
  font-size: 18px;
  line-height: 1.9;
  color: var(--color-text-muted);
}
.hero-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.hero-stat {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  min-width: 120px;
  box-shadow: var(--shadow-sm);
}
.hero-stat .stat-num {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
}
.hero-stat .stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 4px;
}
/* Filter Bar */
.filter-bar-section {
  padding: 28px 0 0;
}
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
}
.filter-bar label {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-muted);
}
.filter-bar select, .filter-bar input {
  min-width: 140px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-light);
  color: var(--color-text-main);
  font-size: 14px;
  transition: border-color var(--transition-fast);
}
.filter-bar select:focus, .filter-bar input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(200, 241, 53, 0.25);
}
.filter-actions {
  display: flex;
  gap: 8px;
  margin-left: auto;
}
.filter-btn {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  background: var(--color-bg-light);
  color: var(--color-text-main);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}
.filter-btn:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.filter-btn.active {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
  font-weight: 700;
}
/* Archive Main Grid */
.archive-main {
  padding-top: 32px;
  padding-bottom: 0;
}
.archive-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 28px;
  align-items: start;
}
.archive-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.archive-card {
  display: flex;
  gap: 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  padding: var(--card-padding);
}
.archive-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgba(11, 31, 23, 0.2);
}
.archive-card-img {
  flex: 0 0 200px;
  height: 150px;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}
.archive-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.archive-card:hover .archive-card-img img {
  transform: scale(1.04);
}
.archive-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.archive-card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.archive-tag {
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(200, 241, 53, 0.18);
  color: var(--color-primary);
  letter-spacing: 0.3px;
}
.archive-tag.alt {
  background: rgba(255, 107, 53, 0.12);
  color: var(--color-alert);
}
.archive-card-title {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--color-primary);
}
.archive-card-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 12px;
}
.archive-card-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.archive-meta-item {
  font-size: 13px;
  color: var(--color-text-muted);
  font-weight: 600;
}
.archive-meta-item strong {
  color: var(--color-primary);
  font-size: 16px;
}
/* Sidebar */
.archive-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.side-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.side-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 16px;
}
.side-stat-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.side-stat-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 15px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--color-border);
}
.side-stat-list li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.side-stat-list .stat-name {
  color: var(--color-text-muted);
  font-weight: 600;
}
.side-stat-list .stat-value {
  font-weight: 800;
  color: var(--color-primary);
  font-size: 16px;
}
.side-note {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 12px;
  line-height: 1.6;
}
/* Recent Updates */
.recent-section {
  background: var(--color-bg-white);
}
.recent-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 28px;
}
.recent-item {
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}
.recent-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}
.recent-item .date {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-alert);
}
.recent-item h4 {
  font-size: 16px;
  font-weight: 700;
  margin: 6px 0 4px;
  color: var(--color-primary);
}
.recent-item p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}
/* Topic Entry */
.topic-section {
  background: var(--color-bg-light);
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 28px;
}
.topic-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}
.topic-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.topic-card-img {
  height: 140px;
  background: var(--color-primary-soft);
  position: relative;
}
.topic-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.topic-card-body {
  padding: 18px 20px;
}
.topic-card h4 {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.topic-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.topic-link {
  display: inline-block;
  margin-top: 12px;
  font-weight: 700;
  font-size: 14px;
  color: var(--color-alert);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.topic-link:hover {
  color: var(--color-alert-hover);
}
/* CTA Section */
.cta-section {
  background: var(--color-primary);
  color: var(--color-text-light);
}
.cta-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-content {
  max-width: 620px;
}
.cta-content h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 12px;
  color: #fff;
}
.cta-content p {
  color: var(--color-text-light-muted);
  line-height: 1.9;
}
.cta-form {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.cta-form input {
  min-width: 260px;
  padding: 13px 18px;
  border-radius: 12px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  font-size: 15px;
}
.cta-form input::placeholder {
  color: rgba(255,255,255,0.55);
}
.cta-form input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(200,241,53,0.2);
}
.cta-success {
  display: none;
  margin-top: 12px;
  padding: 12px 16px;
  background: rgba(200,241,53,0.12);
  border: 1px solid rgba(200,241,53,0.35);
  border-radius: 10px;
  color: var(--color-accent-hover);
  font-weight: 600;
}
.back-home-link {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--color-text-light-muted);
  transition: color var(--transition-fast);
}
.back-home-link:hover {
  color: var(--color-accent);
}
/* Footer */
.site-footer {
  background: var(--color-primary);
  color: var(--color-text-light);
  padding: 56px 0 28px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
}
.footer-desc {
  font-size: 14px;
  color: var(--color-text-light-muted);
  line-height: 1.8;
}
.footer-col-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--color-text-light-muted);
  font-size: 14px;
  transition: color var(--transition-fast);
}
.footer-links a:hover {
  color: var(--color-accent);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 13px;
  color: var(--color-text-light-muted);
}
.footer-bottom-links {
  display: flex;
  gap: 8px;
}
.footer-bottom-links a {
  color: var(--color-text-light-muted);
  transition: color var(--transition-fast);
}
.footer-bottom-links a:hover {
  color: var(--color-accent);
}
/* Responsive */
@media (max-width: 1024px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .archive-grid {
    grid-template-columns: 1fr;
  }
  .archive-sidebar {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .side-card {
    flex: 1 1 280px;
  }
  .topic-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .main-nav {
    padding: 0 16px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-list {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(11, 31, 23, 0.98);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: 12px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-base);
    z-index: 1000;
  }
  .nav-list.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-list li a {
    padding: 12px 16px;
    border-radius: 10px;
  }
  .page-hero {
    padding: 40px 0 32px;
  }
  .page-hero h1 {
    font-size: 30px;
  }
  .section {
    --section-space: 48px;
  }
  .archive-card {
    flex-direction: column;
  }
  .archive-card-img {
    flex: 0 0 auto;
    height: 180px;
    width: 100%;
  }
  .topic-grid {
    grid-template-columns: 1fr;
  }
  .cta-wrap {
    flex-direction: column;
    align-items: flex-start;
  }
  .cta-form input {
    min-width: 100%;
  }
}
@media (max-width: 520px) {
  .container {
    padding-left: 14px;
    padding-right: 14px;
  }
  body {
    font-size: 15px;
    line-height: 1.7;
  }
  .section {
    --section-space: 36px;
  }
  .page-hero h1 {
    font-size: 26px;
  }
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .filter-bar select, .filter-bar input {
    min-width: 100%;
  }
  .filter-actions {
    margin-left: 0;
    justify-content: space-between;
  }
  .archive-card-title {
    font-size: 18px;
  }
  .hero-stats {
    gap: 8px;
  }
  .hero-stat {
    min-width: 100px;
    padding: 12px 14px;
  }
}

/* roulang page: category5 */
:root {
            --color-primary: #0B1F17;
            --color-primary-soft: #133626;
            --color-accent: #C8F135;
            --color-accent-hover: #D9FA58;
            --color-alert: #FF6B35;
            --color-alert-hover: #FF8255;
            --color-bg-light: #F4F7F2;
            --color-bg-white: #FFFFFF;
            --color-text-main: #15231B;
            --color-text-muted: #5B6B62;
            --color-text-light: #E7F0E9;
            --color-text-light-muted: #A9B8AE;
            --color-border: rgba(11, 31, 23, 0.12);
            --color-border-dark: rgba(255, 255, 255, 0.14);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
            --shadow-dark: 0 12px 32px rgba(0, 0, 0, 0.28);
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --section-space: 60px;
            --card-padding: 24px;
            --transition-fast: 0.2s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.35s ease;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text-main);
            background: var(--color-bg-light);
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            outline: none;
        }

        input,
        select {
            font-family: inherit;
            outline: none;
            border: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 28px;
            padding-right: 28px;
        }

        .section {
            padding: var(--section-space) 0;
        }

        .section-alt {
            background: var(--color-bg-white);
        }

        .section-deep {
            background: var(--color-primary);
            color: var(--color-text-light);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--color-alert);
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 800;
            line-height: 1.3;
            color: inherit;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 800px;
            line-height: 1.9;
        }

        .section-deep .section-desc {
            color: var(--color-text-light-muted);
        }

        .text-highlight {
            color: var(--color-accent);
            font-weight: 700;
        }

        .text-alert {
            color: var(--color-alert);
            font-weight: 700;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 15px;
            transition: all var(--transition-base);
            line-height: 1.4;
            letter-spacing: 0.3px;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn:focus-visible {
            outline: 3px solid var(--color-accent);
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        .btn-primary:hover {
            background: var(--color-alert);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }

        .btn-secondary {
            background: transparent;
            color: inherit;
            border: 2px solid currentColor;
        }

        .btn-secondary:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-ghost-light {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
            transform: translateY(-1px);
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 16px;
            left: 24px;
            right: 24px;
            z-index: 1000;
            transition: all var(--transition-base);
        }

        .site-header.scrolled {
            top: 12px;
            left: 24px;
            right: 24px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(11, 31, 23, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-pill);
            padding: 10px 22px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: var(--shadow-dark);
            transition: all var(--transition-base);
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 19px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }

        .brand-dot {
            width: 10px;
            height: 10px;
            background: var(--color-accent);
            border-radius: 50%;
            flex-shrink: 0;
            box-shadow: 0 0 12px rgba(200, 241, 53, 0.6);
        }

        .nav-list {
            display: flex;
            align-items: center;
            list-style: none;
            gap: 4px;
            margin: 0;
            padding: 0;
        }

        .nav-list li a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-light-muted);
            border-radius: var(--radius-pill);
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .nav-list li a:hover,
        .nav-list li a:focus-visible {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .nav-list li a.active {
            color: var(--color-primary);
            background: var(--color-accent);
            font-weight: 700;
        }

        .nav-toggle {
            display: none;
            font-size: 24px;
            color: #fff;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background var(--transition-fast);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            padding: 80px 0 0;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }

        .breadcrumb a:hover {
            color: var(--color-primary);
        }

        .breadcrumb .sep {
            color: var(--color-text-muted);
            opacity: 0.6;
        }

        .breadcrumb .current {
            color: var(--color-text-main);
            font-weight: 600;
        }

        /* Category Hero Compact */
        .category-hero-compact {
            padding: 30px 0 20px;
        }

        .category-hero-compact h1 {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            color: var(--color-primary);
            margin-bottom: 14px;
            letter-spacing: 0.2px;
        }

        .category-hero-compact .category-summary {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 780px;
            line-height: 1.9;
        }

        /* Filter Bar */
        .filter-bar {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px 20px;
            margin-bottom: 30px;
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-group .filter-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--color-text-muted);
            letter-spacing: 0.3px;
            margin-right: 4px;
            white-space: nowrap;
        }

        .filter-chip {
            display: inline-block;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-text-muted);
            background: var(--color-bg-light);
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--color-border);
            color: var(--color-text-main);
        }

        .filter-chip.active {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        .filter-chip.highlight {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
            font-weight: 700;
        }

        /* Column List */
        .column-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .column-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .column-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(11, 31, 23, 0.2);
        }

        .column-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-primary-soft);
            position: relative;
        }

        .column-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .column-card:hover .card-img img {
            transform: scale(1.03);
        }

        .column-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            margin-bottom: 10px;
        }

        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 11px;
            font-weight: 700;
            border-radius: var(--radius-pill);
            letter-spacing: 0.3px;
            background: rgba(200, 241, 53, 0.15);
            color: #3D5A16;
            border: 1px solid rgba(200, 241, 53, 0.45);
        }

        .card-tag.alert-tag {
            background: rgba(255, 107, 53, 0.1);
            color: #B33A0E;
            border-color: rgba(255, 107, 53, 0.35);
        }

        .column-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--color-text-main);
            margin-bottom: 8px;
        }

        .column-card .card-excerpt {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 14px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--color-text-muted);
            border-top: 1px solid var(--color-border);
            padding-top: 14px;
        }

        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Sidebar */
        .category-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 30px;
            align-items: start;
        }

        .main-column {
            min-width: 0;
        }

        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }

        .sidebar-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            padding: 20px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
        }

        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 14px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-accent);
            display: inline-block;
        }

        .hot-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            border-bottom: 1px dashed var(--color-border);
            transition: color var(--transition-fast);
            cursor: pointer;
        }

        .hot-item:last-child {
            border-bottom: none;
        }

        .hot-item:hover {
            color: var(--color-alert);
        }

        .hot-rank {
            font-size: 16px;
            font-weight: 800;
            color: var(--color-accent);
            min-width: 26px;
            text-align: center;
        }

        .hot-rank.top {
            color: var(--color-alert);
        }

        .hot-item .hot-text {
            font-size: 13px;
            line-height: 1.6;
            color: var(--color-text-muted);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            display: inline-block;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-text-muted);
            background: var(--color-bg-light);
            border-radius: var(--radius-pill);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
        }

        .tag-cloud a:hover {
            background: var(--color-primary);
            color: #fff;
            border-color: var(--color-primary);
        }

        /* Topic Entries */
        .topic-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .topic-card {
            background: var(--color-bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .topic-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .topic-card .topic-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-primary-soft);
        }

        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }

        .topic-card:hover .topic-img img {
            transform: scale(1.04);
        }

        .topic-card .topic-body {
            padding: 16px 18px 18px;
        }

        .topic-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text-main);
            margin-bottom: 6px;
        }

        .topic-card p {
            font-size: 13px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
        }

        .faq-item {
            background: var(--color-bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text-main);
            text-align: left;
            cursor: pointer;
            transition: background var(--transition-fast);
            background: transparent;
            border: none;
        }

        .faq-question:hover {
            background: rgba(200, 241, 53, 0.08);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            color: var(--color-accent);
            border-radius: 50%;
            font-weight: 800;
            font-size: 16px;
            transition: all var(--transition-base);
        }

        .faq-item.open .faq-icon {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }

        .faq-answer-inner {
            padding: 0 20px 18px 62px;
            font-size: 15px;
            color: var(--color-text-muted);
            line-height: 1.85;
        }

        /* CTA Banner */
        .cta-banner {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-soft) 100%);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-dark);
        }

        .cta-banner .cta-text h3 {
            font-size: 24px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 8px;
        }

        .cta-banner .cta-text p {
            font-size: 15px;
            color: var(--color-text-light-muted);
            line-height: 1.7;
            max-width: 520px;
        }

        /* Back to Top */
        .back-to-top-section {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: var(--color-text-light-muted);
            padding: 50px 0 30px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 19px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand-dot {
            width: 10px;
            height: 10px;
            background: var(--color-accent);
            border-radius: 50%;
            box-shadow: 0 0 12px rgba(200, 241, 53, 0.6);
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: var(--color-text-light-muted);
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links li a {
            font-size: 14px;
            color: var(--color-text-light-muted);
            transition: color var(--transition-fast);
        }

        .footer-links li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--color-border-dark);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 12px;
            color: var(--color-text-light-muted);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom-links a {
            color: var(--color-text-light-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom-links a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header {
                left: 16px;
                right: 16px;
                top: 12px;
            }

            .site-header.scrolled {
                left: 16px;
                right: 16px;
                top: 8px;
            }

            .category-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }

            .topic-cards {
                grid-template-columns: repeat(2, 1fr);
            }

            .column-list {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-space: 44px;
                --card-padding: 18px;
            }

            body {
                font-size: 15px;
                line-height: 1.7;
            }

            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .nav-toggle {
                display: block;
            }

            .nav-list {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                flex-direction: column;
                background: rgba(11, 31, 23, 0.96);
                backdrop-filter: blur(16px);
                border-radius: var(--radius-md);
                padding: 12px;
                border: 1px solid var(--color-border-dark);
                box-shadow: var(--shadow-dark);
            }

            .nav-list.open {
                display: flex;
            }

            .nav-list li a {
                display: block;
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }

            .category-hero-compact h1 {
                font-size: 26px;
            }

            .column-list {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .sidebar {
                grid-template-columns: 1fr;
            }

            .topic-cards {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .filter-bar {
                padding: 14px 16px;
                gap: 10px 14px;
            }

            .cta-banner {
                padding: 28px 22px;
                flex-direction: column;
                text-align: center;
            }

            .cta-banner .cta-text p {
                max-width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .breadcrumb {
                padding-top: 76px;
                font-size: 12px;
            }
        }

        @media (max-width: 480px) {
            :root {
                --section-space: 32px;
                --card-padding: 14px;
            }

            body {
                font-size: 14px;
                line-height: 1.7;
            }

            .container {
                padding-left: 10px;
                padding-right: 10px;
            }

            .site-header {
                left: 10px;
                right: 10px;
                top: 8px;
            }

            .site-header.scrolled {
                left: 10px;
                right: 10px;
                top: 6px;
            }

            .main-nav {
                padding: 8px 14px;
                border-radius: var(--radius-md);
            }

            .brand {
                font-size: 17px;
            }

            .brand-dot {
                width: 8px;
                height: 8px;
            }

            .category-hero-compact h1 {
                font-size: 22px;
            }

            .column-card .card-body {
                padding: 16px 16px 18px;
            }

            .column-card h3 {
                font-size: 16px;
            }

            .filter-chip {
                padding: 5px 10px;
                font-size: 12px;
            }

            .topic-card .topic-body {
                padding: 12px 14px 14px;
            }

            .topic-card h3 {
                font-size: 14px;
            }

            .faq-question {
                padding: 14px 16px;
                font-size: 14px;
                gap: 10px;
            }

            .faq-answer-inner {
                padding: 0 14px 14px 46px;
                font-size: 14px;
            }

            .faq-icon {
                width: 24px;
                height: 24px;
                font-size: 14px;
            }

            .cta-banner {
                padding: 22px 16px;
                border-radius: var(--radius-md);
            }

            .cta-banner .cta-text h3 {
                font-size: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }

            .breadcrumb {
                padding-top: 72px;
                font-size: 11px;
                gap: 4px;
            }

            .section-title {
                font-size: 22px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                transition-duration: 0.01ms !important;
                animation-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }